Another important aspect of musculoskeletal cancer surgery is the reconstruction of bone defects, which can occur after tumor removal. Dr. Malawer has developed several techniques for reconstructing bone defects, including the use of autografts, allografts, and bone substitutes. These techniques allow patients to regain their limb function and mobility after surgery.
| Section | Main Points | |---------|-------------| | | • Evolution from amputation to limb‑sparing resections. • Malawer’s contribution to the development of wide‑margin resections while preserving function. | | 2. Surgical Planning | • Importance of pre‑operative imaging (MRI, CT, PET) to delineate tumor extent. • Use of computer‑assisted navigation and 3‑D modeling for complex pelvic and proximal femur lesions. | | 3. Resection Techniques | • Type I–VI resections for the pelvis (e.g., Type II – periacetabular). • En‑bloc removal of the tumor with a cuff of healthy tissue to achieve ≥2 cm margins (or a “reactive zone” when anatomy limits). | | 4. Reconstruction Options | • Endoprosthetic replacements (modular, expandable, rotating‑hinge). • Allograft–prosthetic composites. • Biological reconstructions (vascularized fibula, autograft, distraction osteogenesis). | | 5. Soft‑Tissue Management | • Musculature and neurovascular preservation when possible. • Use of local and free flaps (e.g., latissimus dorsi, rectus abdominis) for wound coverage. | | 6. Intra‑operative Adjuncts | • Intra‑operative frozen sections for margin verification. • Navigation‑guided osteotomies and patient‑specific cutting guides. | | 7. Post‑operative Care & Rehabilitation | • Early mobilization protocols. • Physical therapy focused on gait retraining, strength, and proprioception. • Surveillance imaging schedule (every 3–6 months for the first 2 years). | | 8. Outcomes & Complications | • Survival rates comparable to amputation when margins are adequate. • Complication profile: infection (10–20 %), prosthetic failure (5–10 % at 5 yr), limb‑length discrepancy. | | 9. Future Directions | • Integration of augmented reality (AR) for intra‑op visualization. • Biologic scaffolds and 3‑D printed custom implants. • Molecular‑targeted therapies combined with surgical margins to reduce recurrence. | musculoskeletal cancer surgery malawer pdf download
Malawer popularized specific classification systems for surgical resections: These techniques allow patients to regain their limb
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